The Palestinian Central Bureau of Statistics is the official statistical institution of the State of Palestine. Its main task is to provide credible statistical figures at the national and international levels. It is a state institution that provides service to the governmental, non – governmental and private sectors in addition to research institutions and universities. It is established as an independent statistical bureau. The PCBS publishes the Statistical Yearbook of Palestine and the Jerusalem Statistical Yearbook annually.
The Palestinian Central Bureau of Statistics says Gaza's population has declined by around 160,000, including over 55,000 presumed..